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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2022.10.014
|2 doi
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|a eng
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|a Başar, İbrahim Alper
|e verfasserin
|4 aut
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|a Biochar and wood ash amended anaerobic digestion of hydrothermally pretreated lignocellulosic biomass for biorefinery applications
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|c 2022
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 19.10.2023
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Copyright © 2022 Elsevier Ltd. All rights reserved.
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|a This study investigated the effect of biochar and wood ash amendment on the anaerobic digestion of hydrothermally pretreated lignocellulosic biomass. Hydrothermal pretreatment was performed on switchgrass at 200, 250, and 300 °C with 0, 30, and 60 min of retention times. The pretreatment method was optimized using the response surface method for enhanced methane production. At the optimum pretreatment (200 °C/0 min retention time), a specific methane yield of 256.9 mL CH4/g volatile solids (VS), corresponding to an increase of 32.8% with respect to the untreated substrate, was obtained. Hydrothermal pretreatment was beneficial for methane production at temperatures lower than 220 °C and retention times shorter than 20 min. At more severe pretreatment conditions than 220°-20 min, sugars were degraded into other products, causing a decrease in the methane yield. The hydrothermal degradation products, i.e., acetic acid, lactic acid, furfural, and hydroxymethylfurfural concentrations, were also measured and modeled. The addition of biochar and wood ash to BMP assays were tested at 2, 9, 16 g/g VSinoculum ratios and <63, 63-125, 125-250 μm particle sizes. A decline in methane production was observed for all tested doses and particle sizes of both additives. The decline in the methane potential was proportional to the doses and particle sizes. Kinetic modeling of BMP test results also supported that using the additives was not beneficial. Based on the result of this study, it was found that the use of biochar and wood ash in a pretreated lignocellulosic biomass processing biorefinery would not be beneficial
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|a Journal Article
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|a Furfural
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|a Hydrothermal pretreatment
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|a Hydroxymethylfurfural
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|a Methane
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|a Switchgrass
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|a Eskicioglu, Cigdem
|e verfasserin
|4 aut
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| 700 |
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|a Perendeci, Nuriye Altınay
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 154(2022) vom: 01. Dez., Seite 350-360
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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|g volume:154
|g year:2022
|g day:01
|g month:12
|g pages:350-360
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|u http://dx.doi.org/10.1016/j.wasman.2022.10.014
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